Shaping the future together

ERODING WITH wellANT

Erosion tools for rigless P&A and production enhancement

High efficiency in rigless plug and abandonment as well as production enhancement is ensured by ANT’s erosion tool wellANT which is based on the Water Abrasive Suspension (WAS) erosion technology.

wellANT is a ‚rigless‘ solution, requiring only standard coiled tubing and ancillary deck equipment. Designed for maximum versatility, and ease of operation.

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Fields of application

Erosion of restrictions and collapsed wells
Swarfless section eroding for abandonment plugs
Erosion for side tracking

Key Features

Rigless solution
Deployed on standard coiled tubing
Small/micro cuttings
Screening and analysis of returns
Monitoring and control of eroding process
Reuse of more than 80 % of abrasive

Your Advantages

Control and feedback
High flexibility
Time savings
Cost reduction
Maximum safety

wellANT examples of use

Collapsed and restricted wells

Restricted well access due to stuck objects, solids deposition or pipe deformations can cause extended non-productive times of associated assets as well as premature abandonment and challenging plugging.

Traditional pipe conveyed mechanical mills can suffer from unintended side tracking due to reactive torque from the deformation, and require expensive rig mobilisations.

In contrast, wellANT can be deployed on standard coiled tubing even from a Riserless Light Well Intervention (RLWI) vessel. A refined jet orientation ensures that the wellANT only erodes within the diameter of the existing wellbore, with very low reactive torque.

Section eroding

wellANT is also capable of 360-degree swarfless section eroding, which provides a fast and cost effective alternative to section milling.

As the tool erodes casing and concrete together, its consistent water jets will also erode through any other obstructions encountered, perfectly preparing a window for rock-to-rock T plugs.

Side tracking

wellANT also has capabilities to complement coiled tubing drilling assemblies in side-tracking. Utilising the consistency of abrasive jet eroding, the tool can be deflected via cement plug, whipstock or open hole whipstock, to provide a clear pilot hole through multiple materials.

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